單項選擇題Releasing oil from the sea anchor of a lifeboat may（）.

A.keep the propeller from being fouled
B.increase propeller speed
C.help calm the waves in the vicinity of the craft
D.increase the holding power of the sea anchor


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1.單項選擇題On a vessel，if someone fell overboard and you did not know over which side the person fell，you should（）.

A.immediately reverse the engines
B.stop the propellers from turning and throw a ring buoy over the side
C.increase speed to full to get the vessel away from the person
D.first put the rudder hard over in either direction

2.單項選擇題On a ship，a fire pump may be used for other purposes if（）.

A.the other services are run off a reducing station with a pressure gage
B.a separate fire pump is available for use on the fire main
C.all other services are operated by a manifold near the pump
D.All of the above

3.單項選擇題On a rigid liferaft which is equipped with all of the required equipment you may NOT find a（）.

A.boathook
B.fishing kit
C.lifeline or grab rail
D.sea painter

4.單項選擇題Oil fires are best extinguished by（）.

A.cutting off the supply of oxygen
B.removing the fuel
C.cooling below the ignition temperature
D.spraying with water

5.單項選擇題Multiple fire pumps may be used for other purposes provided that one pump is（）.

A.on line to the fire main
B.kept available for use on the fire main at all times
C.capable of being connected to the fire main
D.rated at or above 125 psi